Just sheet in and hang on enjoy the two rides - you prolly won't rememember much about the one to hospital - enjoy

Or get some lessons b4 you kill yerself - oh well - or worse still someone else which would be a tragedy

as VB Man says going-up

Buy a PL and you can self launch ! and land.

It can`t really be done with most LEI kites on a four line system. So get a fifth line or get in the water, it`s much safer in there anyway.
With most kites you have to get them to stop sliding along the sand before they flip over for a relaunch.

....as someone suggested above buy a foil.

If you are dumping you kn kite on the sand straight down kn wind, then you must be at most kiting 27-30m away from the kn beach in onshore kn winds.

Good kn luck to ya!

Common guys give the guy a serious answer -
First of all walk towards the kite so that the middle strut is nearly touching the sand - if i understand the question properly then this means your under-side of your kite will be pointing to the sky. Then walk/swim to the edge of the wind window - make sure you keep some line tension as if the lines are very loose then the kite will flip over and cause a tangle. Too much and the kite will try to launch too early and will power towards the ground.
In short you have to move to the same position that you would launch from when assisted.
Cheers
Al
Oh and if the kite just slides across the sand when you are trying to get the strut to go down towards the sand - understand that this is harder to do on land than on the water so some of the previous posts offer good advice about learning this on the water - eg. the shallows in St Kilda in Melbourne

why are you asking us?